[INFO] fetching crate dynalist 0.1.0...
[INFO] checking dynalist-0.1.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate dynalist 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dynalist 0.1.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynalist 0.1.0
[INFO] finished tweaking crates.io crate dynalist 0.1.0
[INFO] tweaked toml for crates.io crate dynalist 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 72b7dfca31c67d2790a13f7bdb07301b9b1125027c04f77819abe21a9b86d65a
[INFO] running `Command { std: "docker" "start" "-a" "72b7dfca31c67d2790a13f7bdb07301b9b1125027c04f77819abe21a9b86d65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72b7dfca31c67d2790a13f7bdb07301b9b1125027c04f77819abe21a9b86d65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72b7dfca31c67d2790a13f7bdb07301b9b1125027c04f77819abe21a9b86d65a", kill_on_drop: false }`
[INFO] [stdout] 72b7dfca31c67d2790a13f7bdb07301b9b1125027c04f77819abe21a9b86d65a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7856338ad1a96f81c3dbef5fdab0f237b62e22a6ee39a01388d04870caccc553
[INFO] running `Command { std: "docker" "start" "-a" "7856338ad1a96f81c3dbef5fdab0f237b62e22a6ee39a01388d04870caccc553", kill_on_drop: false }`
[INFO] [stderr]     Checking dynalist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::into_raw`
[INFO] [stdout]  --> src/xorlist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::boxed::into_raw;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^ no `into_raw` in `boxed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]  --> src/xorlist.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::{PhantomData, Unsize};
[INFO] [stdout]   |                                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]   = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]    --> src/xorlist.rs:667:20
[INFO] [stdout]     |
[INFO] [stdout] 667 | impl<U: ?Sized, T: Unsize<U>> iter::FromIterator<T> for XorList<U> {
[INFO] [stdout]     |                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]     = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]    --> src/xorlist.rs:675:20
[INFO] [stdout]     |
[INFO] [stdout] 675 | impl<U: ?Sized, T: Unsize<U>> Extend<T> for XorList<U> {
[INFO] [stdout]     |                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]     = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]   --> src/xorlist.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new<U: Unsize<T>>(val: U) -> Box<Node<T>> {
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]    = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]   --> src/xorlist.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn push_back<U: Unsize<T>>(&mut self, val: U) {
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]    = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]   --> src/xorlist.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn push_front<U: Unsize<T>>(&mut self, val: U) {
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]    = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]    --> src/xorlist.rs:484:29
[INFO] [stdout]     |
[INFO] [stdout] 484 |     pub fn insert_before<U: Unsize<T>>(&self, val: U) {
[INFO] [stdout]     |                             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]     = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]    --> src/xorlist.rs:514:28
[INFO] [stdout]     |
[INFO] [stdout] 514 |     pub fn insert_after<U: Unsize<T>>(&self, val: U) {
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]     = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::into_raw`
[INFO] [stdout]  --> src/xorlist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::boxed::into_raw;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^ no `into_raw` in `boxed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xorlist.rs:711:32
[INFO] [stdout]     |
[INFO] [stdout] 711 |         let mut list : XorList<Display> = XorList::new();
[INFO] [stdout]     |                                ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xorlist.rs:768:36
[INFO] [stdout]     |
[INFO] [stdout] 768 |             let mut list : XorList<Debug> = XorList::new();
[INFO] [stdout]     |                                    ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xorlist.rs:787:32
[INFO] [stdout]     |
[INFO] [stdout] 787 |         let mut list : XorList<Display> = XorList::new();
[INFO] [stdout]     |                                ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xorlist.rs:803:32
[INFO] [stdout]     |
[INFO] [stdout] 803 |         let mut list : XorList<Display> = XorList::new();
[INFO] [stdout]     |                                ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xorlist.rs:847:32
[INFO] [stdout]     |
[INFO] [stdout] 847 |         let mut list : XorList<Display> = XorList::new();
[INFO] [stdout]     |                                ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xorlist.rs:857:36
[INFO] [stdout]     |
[INFO] [stdout] 857 |             let mut list : XorList<Display> = XorList::new();
[INFO] [stdout]     |                                    ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]  --> src/xorlist.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::{PhantomData, Unsize};
[INFO] [stdout]   |                                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]   = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]    --> src/xorlist.rs:667:20
[INFO] [stdout]     |
[INFO] [stdout] 667 | impl<U: ?Sized, T: Unsize<U>> iter::FromIterator<T> for XorList<U> {
[INFO] [stdout]     |                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]     = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]    --> src/xorlist.rs:675:20
[INFO] [stdout]     |
[INFO] [stdout] 675 | impl<U: ?Sized, T: Unsize<U>> Extend<T> for XorList<U> {
[INFO] [stdout]     |                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]     = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]   --> src/xorlist.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new<U: Unsize<T>>(val: U) -> Box<Node<T>> {
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]    = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]   --> src/xorlist.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn push_back<U: Unsize<T>>(&mut self, val: U) {
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]    = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]   --> src/xorlist.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn push_front<U: Unsize<T>>(&mut self, val: U) {
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]    = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]    --> src/xorlist.rs:484:29
[INFO] [stdout]     |
[INFO] [stdout] 484 |     pub fn insert_before<U: Unsize<T>>(&self, val: U) {
[INFO] [stdout]     |                             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]     = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'unsize'
[INFO] [stdout]    --> src/xorlist.rs:514:28
[INFO] [stdout]     |
[INFO] [stdout] 514 |     pub fn insert_after<U: Unsize<T>>(&self, val: U) {
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #27732 <https://github.com/rust-lang/rust/issues/27732> for more information
[INFO] [stdout]     = help: add `#![feature(unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dynalist`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 9 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7856338ad1a96f81c3dbef5fdab0f237b62e22a6ee39a01388d04870caccc553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7856338ad1a96f81c3dbef5fdab0f237b62e22a6ee39a01388d04870caccc553", kill_on_drop: false }`
[INFO] [stdout] 7856338ad1a96f81c3dbef5fdab0f237b62e22a6ee39a01388d04870caccc553